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Fix depth compare for texrects rendered with TexrectDrawer.

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Fixed Duke Nukem 64: 2D Render Issue #1915
This commit is contained in:
Sergey Lipskiy 2018-10-21 20:14:58 +07:00
parent a44d5a8960
commit f72553a524
2 changed files with 34 additions and 10 deletions
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40
src/Graphics/OpenGLContext/GLSL/glsl_SpecialShadersFactory.cpp
View File

@ -2,6 +2,7 @@
#include <N64.h>
#include <FrameBuffer.h>
#include <gDP.h>
#include <GBI.h>
#include <Config.h>
#include <PaletteTexture.h>
#include <ZlutTexture.h>
@ -301,15 +302,25 @@ namespace glsl {
;
} else {
m_part =
"uniform sampler2D uTex0; \n"
"uniform lowp int uEnableAlphaTest; \n"
"lowp vec4 uTestColor = vec4(4.0/255.0, 2.0/255.0, 1.0/255.0, 0.0); \n"
"in mediump vec2 vTexCoord0; \n"
"out lowp vec4 fragColor; \n"
"void main() \n"
"{ \n"
" TEX_FILTER(fragColor, uTex0, vTexCoord0); \n"
"} \n"
"uniform sampler2D uTex0; \n"
"uniform lowp int uEnableAlphaTest; \n"
"uniform highp float uPrimDepth; \n"
"lowp vec4 uTestColor = vec4(4.0/255.0, 2.0/255.0, 1.0/255.0, 0.0); \n"
"in mediump vec2 vTexCoord0; \n"
"out lowp vec4 fragColor; \n"
"void main() \n"
"{ \n"
" TEX_FILTER(fragColor, uTex0, vTexCoord0); \n"
;
if (!_glinfo.isGLES2 &&
config.generalEmulation.enableFragmentDepthWrite != 0 &&
config.frameBufferEmulation.N64DepthCompare == 0) {
m_part +=
" gl_FragDepth = uPrimDepth; \n"
;
}
m_part +=
"} \n"
;
}
}
@ -552,6 +563,7 @@ namespace glsl {
const ShaderPart * _fragmentHeader)
: m_program(0)
, m_useProgram(_useProgram)
, m_depth(0)
{
VertexShaderTexturedRect vertexBody(_glinfo);
std::stringstream ssVertexShader;
@ -581,6 +593,7 @@ namespace glsl {
glUniform1i(loc, 0);
m_textureSizeLoc = glGetUniformLocation(GLuint(m_program), "uTextureSize");
m_enableAlphaTestLoc = glGetUniformLocation(GLuint(m_program), "uEnableAlphaTest");
m_primDepthLoc = glGetUniformLocation(GLuint(m_program), "uPrimDepth");
m_useProgram->useProgram(graphics::ObjectHandle::null);
}
@ -593,6 +606,13 @@ namespace glsl {
void activate() override
{
m_useProgram->useProgram(m_program);
if (m_primDepthLoc >= 0) {
const GLfloat depth = gDP.otherMode.depthSource == G_ZS_PRIM ? gDP.primDepth.z : 0.0f;
if (depth != m_depth) {
m_depth = depth;
glUniform1f(m_primDepthLoc, m_depth);
}
}
gDP.changed |= CHANGED_COMBINE;
}
@ -617,6 +637,8 @@ namespace glsl {
opengl::CachedUseProgram * m_useProgram;
GLint m_enableAlphaTestLoc;
GLint m_textureSizeLoc;
GLint m_primDepthLoc;
GLfloat m_depth;
};
typedef SpecialShader<VertexShaderTexturedRect, TexrectDrawerFragmentClear> TexrectDrawerShaderClear;

4
src/TexrectDrawer.cpp
View File

@ -228,7 +228,9 @@ bool TexrectDrawer::add()
m_pBuffer = frameBufferList().getCurrent();
m_otherMode = gDP.otherMode._u64;
m_mux = gDP.combine.mux;
m_Z = (gDP.otherMode.depthSource == G_ZS_PRIM) ? gDP.primDepth.z : gSP.viewport.nearz;
m_Z = (gDP.otherMode.depthSource == G_ZS_PRIM) ?
(gDP.primDepth.z - gSP.viewport.vtrans[2]) / gSP.viewport.vscale[2] :
gSP.viewport.nearz;
m_scissor = gDP.scissor;
m_ulx = pRect[0].x;